What about weave-on's or hair weaves?
Particularly popular for Afro-Caribbean hair, this method uses hair already attached to a long strip of material - almost like a "grass skirt". This is then cut into further strips and is sewn - in some cases, glued - onto your hair using thread and a curved needle.
Whilst it's a cheap and relatively quick solution, the weight of the material and hair can cause traction alopecia, both in Afro-Caribbean and Western hair. It can also cause matting, leading to unintentional dreadlocks. We regularly work with and treat clients who've encountered these problems and, because of this, we wouldn't recommend it.